baber/WOPTO huggingface dataset:
Patent GB-535379-A (GB)
Title: Treatment of artificial fibres and like materials
IPC: D06M11/05
Filed: 1939-10-05
Abstract: 535,379. Artificial filaments ; treating textiles with liquids. DU PONT DE NEMOURS & CO., E. I. Oct. 5, 1939, No. 27251. Convention date, Oct. 5. 1938. [Classes 2 (ii) and 15 (ii)] A swollen cold-drawn filament, fibre, or thread of a synthetic linear polymer preferably a polyamide is exposed in relaxed condition to a heated indifferent fluid for a time sufficient to crimp the filament.. The filaments may be obtained by dry, wet, or melt spinning processes. Swelling may be effected with aniline, benzyl alcohol, water, methanol, ethanol, propanol, or other mild swelling agent. The heated indifferent fluid may be any liquid, gas, or vapour which is chemically inert toward the polymer, e.g. a hydrocarbon, chlorinated hydrocarbon, ether, ester, polyhydric alcohol, molten mercury or Wood's metal. The indifferent fluid, when liquid, should be immiscible or not readily miscible with the swelling agent and should be readily removed from the filaments by evaporation or by washing. When water is used as swelling medium, turbine oil, or castor oil may be used as crimping medium. When methanol is used as swelling medium, turbine oil, castor oil, tetrachlorethylene, or Hi-flash naphtha may be used, for crimping. With water or methanol as swelling medium, the vapours of Hi-flash naphtha, tetrachlorethylene, nitrogen, carbon monoxide, or argon may be used. The temperature of the crimping fluid may be as high as 250 C. Liquid crimping baths should be at least 20 C. above the boiling point of the swelling agent used. During the crimping treatment the filaments should be under no or but very slight tension, e.g. less than 0.5 mg. per denier. The filaments so treated are insensitive to moisture, resistant to solvents and other chemicals, resistant to ageing, and are readily dyed with wool dyes. They have good heat insulating properties, and have resiliency and crease retention similar to that of wool. In an example, polyhexamethylene adipamide yarn is cold-drawn and cut into staple fibres. The fibres are swelled with water, pressed and then immersed in turbine oil at 160 C. They are removed and dried. In another example, polyhexamethylene adipamide yarn is colddrawn, swelled with water, passed through squeeze rolls and then crimped while passing through di-n-butyl ether vapour at 250 C. The linear polymer may be a polyamide, polyester, polyacetal, polyether, polyester-polyamide, or a co-polymer or inter-polymer obtained from a mixture of amines and dicarboxylic acids, or a mixture of a diamine, a di-carboxylic acid, and an amino acid. Other crimping liquids specified are glycerol, triacetin, di-methylene pentaerythrite, lauryl alcohol, oleic acid, sebacic acid, octyl alcohol, butyl carbitol, triethanolamine, Turkey red oil, toluene, n-amyl alcohol, and methyl hexyl ketone. The fibres may be used in admixture with other natural or artificial fibres. They may be used in the production of knitted or woven fabrics, rugs, and the like. Specification 461,236 is referred to.
Patent GB-669210-A (GB)
Title: Improvements in or relating to circuits for the generation of electrical oscillations
IPC: G01L9/12
Filed: 1949-10-24
Abstract: 669,210. Valve generating circuits. LAMONT, K. Oct. 20, 1950 [Oct. 24, 1949], No. 27254/49. Class 40 (vi). In a valve oscillator of the type in which two capacitors determine the oscillatory potential of one electrode of the valve and a third capacitor determines the oscillatory frequency, the two capacitors are formed at least in part by the capacitances between three coaxially arranged conductors and the third capacitor is variable and is connected to the oscillator by one of the conductors. This enables the tuning capacitor to be located at a remote point. As shown, a Colpitts oscillator comprises a tuning inductor 8 across which is connected the capacitances between the outer and intermediate, and intermediate and inner conductors 6, 5 and 4, the intermediate conductor being connected to the cathode which is isolated from earth by a choke 11. The frequency is adjusted by means of a variable capacitance 7 connected to the remote end of the inner conductor. The capacitances between the conductors and the tuning capacitance may be augmented by additional fixed capacitors if necessary.
Patent GB-213627-A (GB)
Title: Improvements in liquid column internal combustion pumps, compressors or the like
IPC: F04F1/16
Filed: 1922-10-10
Abstract: 213,627. Beardmore & Co., Ltd., W., Chorlton, A. E. L., and Rusdell, W. J. Oct. 10, 1922. Explosion apparatus.-In an internal-combustion pump or compressor, a layer of air or indifferent gas is arranged between the fresh combustible and the products of combustion of the previous charge when the liquid column begins its return stroke. The air &c. may be drawn in during the expansion stroke through valves 1 arranged at a level between the levels of the exhaust valve 3 and the fuel inlet valve 2. The gas and air may be admitted tangentially as described in Specification 205,523. Admixture of the air and the combustible above it may be accelerated by a jet of air, gas or steam. Diffusion of the combustible into the exhaust products may be reduced by means of a number of coaxial cylindrical partitions 4. The combustion chamber may be divided into two compartments by a constriction near which the air valves are arranged. The constriction may be varied in size by a device described in Specification 205,523. In another form, the chamber is divided by a number of short cylindrical partitions, the spaces between which are filled by current partition rings linked together, so that they may be moved vertically to open the cylinders just before ignition. In another form, a number of side chambers communicate by small passages with the upper part of the combustion chamber and contain combustible mixture which is ignited about the end of the compression stroke. Jets of flame pass through the narrow passages and cause violent mixing and ignition in the combustion chamber. Intermixture of gas, air and combustion products may be prevented by a longitudinal cylindrical partition in the combustion chamber.
Patent GB-189937-A (GB)
Title: Improvements in safety pins or the pins of ornaments for personal wear
IPC: A44B9/14
Filed: 1921-10-15
Abstract: 189,937. Jennens, W. F. Oct. 15, 1921. Safety-pins. - Safety or brooch pins &c. are made from wire 2 of square, rectangular or flat section, a part of which is reduced to round section by swaging and pointed to form the pin member 3, the wire being then bent to the required shape. A groove 5 is formed in the end of the front member, which is turned over for engagement with the point of the pin. Any form of ornamentation may be applied to the front member; or the whole pin may be secured to a brooch &c.
Patent GB-601349-A (GB)
Title: Improvements in the moulding of dentures
IPC: A61C13/00
Filed: 1945-10-19
Abstract: 601,349. Dental flasks; injection-moulding. LUXENE, Inc. Oct. 19, 1945, No. 27496. Convention date, March 31, 1943. [Class 87(ii)] To prevent the escape of denture material at the parting, a flask F has parallel top and bottom surfaces, along the entire periphery of which pressure is applied by means of a clamp C. To compensate for shrinkage of the material, excess material is injected into the mould cavity 30 by a spring (40)-urged piston 36. The clamp C consists of an internally screw threaded part 13 and an externally screw threaded plate 14. A bevelled hole 29 is provided in the lid 23 of the flask to allow escape of excess plaster, when the lid is pressed on, and to ensure that the plaster is locked to the lid. In operation, material such as vinyl copolymer and acrylate monomer is packed into the mould cavity 30 until it is about ¢ to ¥ full, the flask is then assembled and clamped in position, and the nozzle 34 of the injection device, filled with material, is screwed into the lid 23. The initial compression of the spring 40 is adjusted by a nut 46. A barrel 39, containing the spring and plunger, is screwed onto the nozzle to cause the piston to exert pressure on the material. When the desired pressure is obtained, as shown by an indicator 47, the flask is immersed in boiling water and the material is kept under pressure by turning the barrel 39. If the indicator shows that no pressure is being applied, the barrel and piston are removed and a further charge of material is placed in the nozzle. The sprue is broken, while still hot, by turning the nozzle. After cooling the clamp is removed and the denture ejected by pressing on the bottom 24. The Specification as open to inspection under Sect. 91 describes a method of determining the rates of flow of the moulding material during heating. It is also stated that, to prevent the binding of the piston in the nozzle, the nozzle may be made of stainless steel and the piston of silverplated bronze. This subject-matter does not appear in the Specification as accepted.
Patent GB-158666-A (GB)
Title: Improvement connected with coin freed gas meters
IPC: G07F15/08
Filed: 1919-11-07
Abstract: 158,666. Glover, W. R. Nov. 7, 1919. Gas, supplying by meter; price-changing mechanism.-In a coin-freed gas-meter having a price-change disc C, Fig. 1, of the kind described in Specification 25272/94 looked by a fixed catch E and a removable catch F, the removable catch comprises a piece of metal bent to form two parallel legs G, I, Fig. 3, joined by a piece H having a kinked and inclined extension F. The legs G, I are passed through two slots in the casing with the extension F overlapping the disc C, and the catch is locked by a lever M, Fig. 6, pivoted at N inside the casing and adapted to engage in a slot J in the leg I. The part carrying the lever M is enclosed by the coin-box S to prevent the catch from being tampered with. Instead of by the lever M or in addition thereto, the catch may be locked by a screw Q engaging a threaded hole P in the leg G. The screw is protected by sealing-wax placed in a recess fcrmed by a wall R surrounding the screw.
Patent GB-868759-A (GB)
Title: Improvements in or relating to calculating machines
Inventor: KITZ NORBERT
IPC: G06F7/498
Filed: 1956-09-06
Abstract: 868,759. Digital electric calculating-apparatus. BELL PUNCH CO. Ltd. Sept. 2, 1957 [Sept. 6, 1956; Nov. 22, 1956; July 3, 1957], Nos. 27572/57, 27573/57 and 27574/57. Divided out of 868,753. Class 106 (1). A calculating machine which is basically that described in Specification 868,757, is provided with means for enabling division to be carried out automatically. As shown, Fig. 1, additional conductive commutator segments " H " and " HL " are provided. To effect division, the machine is set for addition and the numerals of the dividend are inserted in the keyboard with the most significant digit in the highest order of keys to enter the dividend into the counting tubes O 10 -Z 10 . The machine is then set for division which causes the tube L to discharge to its " 9 " cathode L<SP>1</SP> 9  the divisor then being set into the highest possible position in the keyboard, actuation of a " divide " key then initiating a division cycle. The valve T 1  is rendered conductive from the condenser U 4  so that as the brush F sweeps over the contacts O 0  to O 8  &c., the complement of the divisor is added into the dividend. If this results in a transfer pulse from the counting tube Z 10 , the valve T 9  is rendered non-conductive to apply zero potential to a contact 4 but if no transfer occurs, the contact 4 is energized to step on the tube L by one digit when the contacts 4-4 are bridged by the brush Fl thus rendering the valve T 2  conductive and T 1  non-conductive. The valve T 5  is thus rendered conductive to apply a potential to the contacts E‹-E‹ which are in advance of the commutator segments Z 9 , Y 9 , &c. which, when the contacts E‹-E‹ are bridged, cause the valve T 8  to conduct, applying a potential to the contacts O 12 -O 21 , P 12 -P 21  ... H 12 - H 21 , and to the contacts P 22 -P 30  ... L 22 - L 30 , the contacts L 12 -L 21  being supplied by the valve T 1  and the contacts O 22 -O 30  from T 7  so that as the brushes F<SP>1</SP>, F<SP>2</SP> move over the contacts, the values in the counting tubes O 10 -Z 10  are transferred and complemented. The " divide " key is depressed for each digit of the quotient required, the quotient digits appearing sequentially in the lowest order. The divide key 400, Fig. 11, is arranged in line with the multiplier keys for " 0 " to " 9," 401-410. When any one of these keys is depressed, a keybar 437 moves an extension 414 to permit a contact blade 416 to open contacts 424, 425 and close contacts 417, 418, the contacts 411 moving with the keys " 0 " to " 9 " bridging one of the pairs of contacts 412, 413, the key being kept depressed by the operator until the result of the operation being performed is indicated. Specifications 868,756, 868,758, 868,760, 868,761 also are referred to.
Patent GB-771326-A (GB)
Title: Improvements in fuel injection pumps
IPC: F02M57/02
Filed: 1954-09-24
Abstract: 771,326. Fuel-injection pumps. EVANS, A. F., HOPKINS, C. H., [Legal Representative of HOPKINS, W. S. (deceased)]. June 23. 1955 [Sept. 24, 1954; Nov. 30, 1954], Nos. 27654/54 and 34677/54. Class 102(1) In a fuel-injection pump, the plunger L has an axial bore M that communicates with a transverse port E that co-operates with a sleeve D to control the inlet to a rigid chamber C. On the upward stroke, the port E is closed and fuel in the chamber C is compressed until the plunger is moving at high speed and a transverse port O is opened to the delivery X causing a preliminary injection after which the main injection is delivered by the plunger until a spill port Q is opened by passing through an adjustable sleeve H. The delivery X is fitted with a spring-loaded valve AA and an edge filter BB. An air bleed A is provided in chamber C.
Patent GB-1529711-A (GB)
Title: Optical etc phase filters producing near-field patterns
IPC: G02B5/20
Filed: 1975-07-01
Abstract: 1529711 Colour photography on black and white film R C A CORPORATION 23 Dec 1975 [1 July 1975] 27701/75 Headings G2C and G2J A diffraction grating is composed of recurrent identical groups of sawtooth lines in which the step height from one line to the next within a group is varied from one end of the group to the other in a prescribed manner, the resulting grating serving to segregate wavelength components (from collimated incident light) in a near field focal plane. The variation in phase delay caused by the lines is arranged with respect to the centre wavelength of the spectral range with which the device is to be used. The lines of the grating may be surface relief on a transparent substrate, or surface relief on a reflective surface, or may be due to index graduation in a flat substrate. As described with reference to Fig. 3, each filter group comprises three lines of progressively decreasing height, and the incident light is imaged as recurring triplets of red green and blue light in the near field. Colour picture information can therefore be recorded on black and white emulsion (or other photoreceptor surface). If two or more such grating structures are superimposed at an angle, the resulting image is resolved into coloured spots (rather than lines). A picture so recorded, on a film base which is embossed with the diffracting structure, may be reprojected as a colour image by the reversal of the optical path (i.e. in a white light projector). The relationships between step heights and blaze angle is given in detail.
Patent GB-429751-A (GB)
Title: Improvements in transparent panels or windows
IPC: F24C15/04
Filed: 1934-10-08
Abstract: 429,751. Cabin lights. MOWER, G. A., 147, Queen Victoria Street, London. Oct. 8, 1934, No. 27751/33. [Class 113 (i)] [See also Groups VI, X, and XII] A heat or sound insulating window or transparent panel comprises two glass sheets 1 of dished formation provided at their edges with flanges 2 which are fused together to form a cavity from which the air is exhausted. The window or panel is applicable to portholes.
Patent GB-1065495-A (GB)
Title: Method of opening fibre bales and stacking fibres for blending and apparatus therefor
IPC: D01G7/04
Filed: 1964-07-06
Abstract: Apparatus for opening fibre bales and stacking fibres for blending comprises a plurality of plucking means, one or more racks which reciprocate the bales both longitudinally and transversely over the plucking means, conveying means below the plucking means to convey the plucked fibres to their respective reserve boxes, and a conveyor belt to stack fibre sheets delivered by the reserve boxes and to pass the stacked sheets to the blending means.  Each plucking means comprise two shafts having a plurality of plucking saws or blades mounted thereon, the shafts rotating in opposite directions, and the saws or blades projecting between the rollers of the or each rack to pluck the bales as the racks reciprocate longitudinally thereover. The rollers are oscillated either continuously or merely at the end of each reciprocation of the rack to reciprocate the bales transversely.  The fibres are conveyed pneumatically or by a lattice conveyor to their reserve boxes which may be of adjustable size and have photoelectric cells to control the rate of feed of fibres thereto.
Patent GB-204223-A (GB)
Title: Improved process for the manufacture of lead arsenate
IPC: C01G28/00
Filed: 1922-10-13
Abstract: Colloidal lead oxide is obtained by treating lead oxide and water in a Plauson mill, steam being passed through the jacket of the mill to bring the temperature to 80-100 DEG  C.ALSO:Lead arsenate is obtained by reacting with arsenic acid upon a colloidal solution of lead oxide in water, aqueous solution, or other suitable dispersion medium, preferably at a raised temperature.  The arsenate precipitates in a finely divided form. An example describes the production of the arsenate PbHAsO4 in this manner, the colloidalizing of the lead oxide in water being effected in a Plauson mill, steam being passed through the jacket of the mill so as to raise the temperature to 80-100 DEG C. The arsenic acid is run into the mill, and the reaction is effected in a few minutes.
Patent GB-980184-A (GB)
Title: Handle assembly
IPC: A47J45/06
Filed: 1961-08-01
Abstract: 980,184. Handle assemblies. CORNING GLASS WORKS. Aug. 1, 1961 [Aug. 2, 1960], No. 27913/61. Heading A4A. A handle 20 is secured to a vessel 10 which may be made of glass by a resilient band 11 encircling the neck of the vessel, the ends of the band being bent as shown in Fig 5 and engaged in a socket in the handle.
Patent GB-705111-A (GB)
Title: Improvements in or relating to domestic fire places
Inventor: BAYLISS JAMES
IPC: F24B1/195
Filed: 1951-11-29
Abstract: 705,111. Fireplaces. BIRMINGHAM STEEL CO., Ltd. Dec. 1, 1952 [Nov. 29, 1951], No. 27971/51. Class 126 An adaptor for a fireplace, to bring the grate forward from its normal position with the fireplace back comprises a refractory unit having sides and a back with a rearwardly extending part at the top of the back so as to set the adaptor forward. The top part 7 of the adaptor back extends to the part 6 of the fireplace back which slopes backwardly to the flue. The interior of the adaptor 4 is shaped to accommodate a grate unit 8 according to Specification 699,816, or other suitable type of grate.
Patent GB-826465-A (GB)
Title: Improvements in or relating to bottle crates and to the method of manufacturing same
Inventor: HENDERSON ALISTAIR GORDON
IPC: B21F27/12
Filed: 1955-10-01
Abstract: 826,465. Making wire crates. G.K.N. REINFORCEMENTS Ltd., [formerly TWISTEEL REINFORCEMENT Ltd.]. Oct. 1, 1956 [Oct. 1, 1955], No. 27992/55. Class 83 (2). [Also in Group XVII] A bottle crate has one or more sets of crossed wires forming compartments, the wires being curved downwardly at each side and being bent to this form while assembled as a plane mesh, the bent set then being secured as a whole in the crate. The mesh is fed to dies (not shown) for simultaneously bending a transverse row of longitudinal compartment sides at each movement. The mesh is then fed through to bend the transverse sides in the same manner. The longitudinal compartment sides 16 may extend beneath and be secured to base rods 13 or the base may be a separate mesh, and the compartment sides spaced from it.
Patent GB-367821-A (GB)
Title: A process for indicating and regulating the content of chlorine or similar water-purifying agents in flowing water or sewage
IPC: G05D11/13
Filed: 1930-09-19
Abstract: A process for indicating and regulating the content of chlorine or similar water purifying agent in flowing water or sewage is characterized by the utilization of the potential difference produced between two electrodes, one of which is surrounded by the untreated water and the other by the treated water.  The potential difference may be utilized to actuate a galvanometer, the needle of which oscillates between two stops and is in a motor circuit whereby the motor is rotated in one direction or the other to open or close a valve supplying chlorine to the water pipe.  The chlorine may be added directly to the sewage or may be dissolved in water before the addition.  As shown in the <PICT:0367821/III/1> Figure, the main supply of chlorine is added in constant quantity, the galvanometer serving to regulate the peak requirements of the sewage.  The electrodes 18, 21 are contained in glass tubes 17, 20 dipping into a test tank 16.  The tube 17 receives untreated water from a pipe 15 and the tube 20 receives treated water through the pipe 19.  The overflow is led back to the pipe to a region of low pressure.  The chlorine is supplied from a cylinder 13 and the main constant supply is derived from a dosing apparatus 14 and a container 12 through a pipe 11.  The galvanometer is in series with a Wheatstone bridge arrangement whereby an adjustable compensating potential may be applied to the galvanometer in order that it may read zero when the electrodes 18, 21 are both surrounded by untreated water.  The galvanometer needle 25 actuates through a relay, a valve 26 in an auxiliary water pipe 27 having a choking disc 29 therein.  The pressure difference at the sides of the disc is utilized through pipes 28, 32 to actuate a control valve for the chlorine dosing plant 31, 33 in known manner, to regulate the variable peak chlorine requirements of the sewage.  The electrodes may be of the same or different materials, gold, platinum, copper, silver, zinc, cobalt, aluminium, carbon and magnetite being suitable.  The electrode in the treated water and, if desired, the other electrode preferably consist of a material which lies on the positive side of an electromotive series in which hydrogen equals zero.  The Wheatstone bridge compensator may be replaced by electrodes of the same materials as used in the main indicating and regulating circuit.  If desired, the chlorinated water previous to being admitted to the tank 16 may be passed over calcium carbonate to neutralize the acidity.  The untreated water in the pipe 15 may be similarly treated.  The process may be used for indicating and controlling the content of hypochlorite, sodium carbonate, caustic soda, phosphates and aluminium sulphate.
Patent GB-509911-A (GB)
Title: Improvements in grinding discs for combined disc mills and pumps
IPC: B02C7/12
Filed: 1937-10-16
Abstract: 509,911. Disc-mills. PANSTWOWA WYTWORNIA PROCHU. Oct. 16, 1937, No. 28205. Void. Convention date, Oct. 17, 1936. [Class 59] [Also in Group VIII] In a combined disc-mill and pump for grinding vegetable fibres &c. the grinding discs a are provided with zigzag shaped teeth c disposed radially on the discs, the teeth on opposed discs being oppositely directed to produce a shearing action during rotary movement. A pump d is attached to the hub of the rotary disc. The teeth may be made of flat steel having a rectangular cross-section. The teeth may be welded or riveted or be cast in the disc.